package Day7;

import jdk.jshell.Snippet;

import java.util.Scanner;

/**
 * 方法版本的ATM
 */

public class ATM {
    static String[][] users = {
            {"aaaaaa","111111","1000"},
            {"bbbbbb","222222","2000"},
            {"cccccc","333333","3000"},
            {"dddddd","444444","4000"},
            {"eeeeee","555555","5000"}
    };
    static Scanner sc = new Scanner(System.in);
    static int index = 0;
    //控制ATM流程的方法
    public static void process(){
        System.out.println("欢迎使用Love银行");
        while (true) {
            login();
            menu();
        }
    }
    //登录方法
    public static void login(){
        for (int i = 0;i < 3;i++){
            System.out.println("请输入账号：");
            String account = sc.next();
            System.out.println("请输入密码");
            String pwd = sc.next();
            for (int j = 0;j < users.length;j++){
                if (users[j][0].equals(account) && users[j][1].equals(pwd)){
                    System.out.println("登录成功");
                    index = j;
                    return;
                }
            }
            System.out.println("账号或密码错误请重新输入,还剩"+ (2 - i)+"次");
        }
        System.out.println("次数用完，卡已被吞！");
        System.exit(0);//系统结束
    }
    //菜单界面
    public static void menu(){
        while (true){
            System.out.println("请选择：1-查询 2-存款 3-取款 4-转账 5-切换账号 6-退出");
            int input = sc.nextInt();
            if (input == 1){
                search();
            }else if (input == 2){
                save();
            }else if (input == 3){
                get();
            }else if (input == 4){
                transfer();
            }else if (input == 5){
                System.out.println("账号登出");
                return;
            }else if (input == 6){
                System.out.println("谢谢使用，再见！");
                System.exit(0);
            }else {
                System.out.println("选择有误，请重新选择");
            }
        }
    }
    //存款
    public static void save(){
        System.out.println("请输入您的存款金额：");
        double money = sc.nextDouble();
        users[index][2] = Double.parseDouble(users[index][2]) + money + "";
        System.out.println("存款成功");
    }
    //取款
    public static void get(){
        System.out.println("请输入您的取款金额：");
        double money = sc.nextDouble();
        if (money <= Double.parseDouble(users[index][2])){
            users[index][2] = Double.parseDouble(users[index][2]) - money +"";
        }else {
            System.out.println("您的余额不足，请重新选择");
            return;
        }
        System.out.println("取款成功");
    }
    //查询
    public static void search(){
        System.out.println("您的余额为："+users[index][2]);

    }
    //转账
    public static void transfer(){
        System.out.println("请输入您的转账金额：");
        double money = sc.nextDouble();
        //
        if (money > Double.parseDouble(users[index][2])){
            System.out.println("余额不足");
            return;
        }
        System.out.println("请输入对方账号");
        String otherAccount = sc.next();
        if (otherAccount.equals(users[index][0])){
            System.out.println("不能转给自己");
            return;
        }
        for (int i = 0;i < users.length;i++){
            if (users[i][0].equals(otherAccount)){
                //当前账户的钱扣去
                users[index][2] = Double.parseDouble(users[index][2]) - money +"";
                //把钱加到对方账户
                users[i][2] = Double.parseDouble(users[i][2]) + money +"";
                System.out.println("转账成功");
                return;
            }
        }
        System.out.println("输入的账户不存在");
    }

    public static void main(String[] args) {
        process();
    }

}
